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This operation is not supported for directory buckets.
Sets the cors configuration for your bucket. If the configuration exists, Amazon
S3 replaces it.
To use this operation, you must be allowed to perform the s3:PutBucketCORS
action. By default, the bucket owner has this permission and can grant it to others.
You set this configuration on a bucket so that the bucket can service cross-origin
requests. For example, you might want to enable a request whose origin is http://www.example.com
to access your Amazon S3 bucket at my.example.bucket.com by using the browser's
XMLHttpRequest capability.
To enable cross-origin resource sharing (CORS) on a bucket, you add the cors
subresource to the bucket. The cors subresource is an XML document in which
you configure rules that identify origins and the HTTP methods that can be executed
on your bucket. The document is limited to 64 KB in size.
When Amazon S3 receives a cross-origin request (or a pre-flight OPTIONS request) against
a bucket, it evaluates the cors configuration on the bucket and uses the first
CORSRule rule that matches the incoming browser request to enable a cross-origin
request. For a rule to match, the following conditions must be met:
The request's Origin header must match AllowedOrigin elements.
The request method (for example, GET, PUT, HEAD, and so on) or the Access-Control-Request-Method
header in case of a pre-flight OPTIONS request must be one of the AllowedMethod
elements.
Every header specified in the Access-Control-Request-Headers request header
of a pre-flight request must match an AllowedHeader element.
For more information about CORS, go to Enabling Cross-Origin Resource Sharing in the Amazon S3 User Guide.
The following operations are related to PutBucketCors:
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginPutCORSConfiguration and EndPutCORSConfiguration.
Namespace: Amazon.S3
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z
public abstract Task<PutCORSConfigurationResponse> PutCORSConfigurationAsync( String bucketName, CORSConfiguration configuration, CancellationToken cancellationToken )
Specifies the bucket impacted by the corsconfiguration.
Describes the cross-origin access configuration for objects in an Amazon S3 bucket. For more information, see Enabling Cross-Origin Resource Sharing in the Amazon S3 User Guide.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
.NET:
Supported in: 8.0 and newer, Core 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5 and newer